If you want you can test a branch test that should fix this issue.
In your recalbox.conf
file, edit the G - UPDATES
section :
updates.type=stable
-> updates.type=https://review-505-msx-on-yfowtk-archive-review-prod.recalbox.com
Do the upgrade asked by the system, then test Bluemsx core on msx and colecovision.
Désolé pour l'english, la flème de refaire le post en français